Want to start the Radahn Festival in Elden Ring? The Radahn Festival changes the status of Redmane Castle, allowing you to find its boss, Starscourge Radahn. Without triggering the Radahn Festival, you can’t defeat Radahn, which is part of Ranni’s quest and a requirement to access Nokron, the Eternal City.
Until you begin the Radahn Festival and defeat Radahn himself, you also cannot begin the new Shadow Of The Erdtree DLC. So if you want to experience everything that Elden Ring has to offer, the Radahn Festival is an aboslute must to trigger. As it’s rather difficult to figure this out on your own, this guide will show you how to start the Radahn Festival in Elden Ring.